/Engine/Plugins/Editor/ObjectMixer/ObjectMixer/Source/ObjectMixer/Public/Views/List/Modes/ObjectMixerOutlinerHierarchy.h
Create all component items for an actor if we are showing components and place them in OutItems. Items not added if filtered out.
void CreateComponentItems ( const [AActor](API\Runtime\Engine\GameFramework\AActor) * Actor, [TArray](API\Runtime\Core\Containers\TArray)< FSceneOutlinerTreeItemPtr > & OutItems ) const